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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-14 16:41:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-18 01:16:04 +0200 |
| commit | 41315d5c7d48d939e218e4f62fe7acb36d33a958 (patch) | |
| tree | 516b0c2c5bd47b9250f0d80d12b22f9a5515a42b | |
| parent | d946e7b805e21e62a69e1e290d98a494db863e69 (diff) | |
| download | ffmpeg-41315d5c7d48d939e218e4f62fe7acb36d33a958.tar.gz | |
avcodec/aacdec_fixed: Fix undefined integer overflow in apply_independent_coupling_fixed()
Fixes: signed integer overflow: 1195517 * 2048 cannot be represented in type 'int'
Fixes: 8636/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-4695836326887424
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8bd514d9343746566b123275f8b6d0e9c11ec2b0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacdec_fixed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c index 71a4611082..26b605b59c 100644 --- a/libavcodec/aacdec_fixed.c +++ b/libavcodec/aacdec_fixed.c @@ -436,7 +436,7 @@ static void apply_independent_coupling_fixed(AACContext *ac, else { for (i = 0; i < len; i++) { tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37); - dest[i] += tmp * (1 << shift); + dest[i] += tmp * (1U << shift); } } } |